package pattern.behavioral.iterator.simple;

/**
 * @author: chaoyang.ren  
 * @date:Jun 5, 2017  
 * @time:11:31:52 AM   
 * @email:chaoyang.ren@foxmail.com  
 * @version: 1.0
 */
public interface Iterator<E> {
	E first();
	E next();
	int size();
	boolean hasNext();
}

